Ans given below
-3r-12=-21
-3r=-21+12
-3r=-9
r=-9\-3
r=3
Answer:
x=11
Step-by-step explanation:
For extra help the second answer is: 7a(3-a)
I think it's B. not sure though u should wait. till someone else answer to see if I am right
Answer:
<h2>The answer is 13.4 units</h2>
Step-by-step explanation:
The distance between two points can be found by using the formula

where
(x1 , y1) and (x2 , y2) are the points
From the question the points are
A (10,-1) and B (-2,5)
The distance is

We have the final answer as
<h3>13.4 units to the nearest tenth</h3>
Hope this helps you
Answer:
7/60
Step-by-step explanation:
U find the common denominator, subtract how you would with negative and postive integers, and check if you can simplify